Home / 426,135.96-639,037.82-159,751.13

Finding the Fourth Proportional to 426,135.96, 639,037.82 and 159,751.13

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Solution

The fourth proportional to 426,135.96, 639,037.82 and 159,751.13 is: 239,564.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,135.96 : 639,037.82 = 159,751.13 : x
  2. Step 2: Convert to fraction form
    426,135.96/639,037.82 = 159,751.13/x
  3. Step 3: Cross multiply
    426,135.96x = 639,037.82 × 159,751.13
  4. Step 4: Simplify right side
    426,135.96x = 102,087,011,061.93
  5. Step 5: Solve for x
    x = 102,087,011,061.93/426,135.96
  6. Step 6: Final answer
    x = 239,564.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.